Search results for "migration"

Abitare i luoghi dell'integrazione

Il tema che la ricerca in questione indaga, riguarda l’abitare posto in relazione agli imponenti flussi migratori che si susseguono nelle città e che, configurano nuove pratiche sociali e urbane. La storia ci mostra come, da sempre, lo spostamento dei popoli abbia determinato sviluppi sia dal punto di vista demografico, storico, culturale, economico all’interno dei paesi ma, allo stesso tempo, ha modificato lo spazio urbano, in quanto portatori di culture tradotti in forme. Si pensi infatti, alle tante testimonianze, ancora presenti nelle città, in cui sono evidenti le diverse influenze (dal popolo greco, romano, arabo, ebreo, etc) che si pongono come valore di memoria e continuità. Rispett…

Storie di uomini, racconti di spazio

2019

Ancora oggi si susseguono notizie di uomini che strenuamente attraversano il Mediterraneo, di naufragi disperati che si susseguono con cadenza inesorabile, come in un appuntamento macabro con la morte, come in una triste litania funebre che si snoda sotto lo sguardo attonito dell’Occidente. Intanto un nuovo mondo sta silenziosamente nascendo, configurando con apparente disordine un nuovo assetto geopolitico, tra l’esaltazione nazionalistica di muri che riaffermano l’invalicabilità dei confini e un’accoglienza diffusa che invece ne invoca la disintegrazione mostrando la forza inarrestabile e pervicace della solidarietà tra gli uomini, una residua speranza nel futuro. Una sorta di ricomposizi…

Spazio artistico ed espressione di libertà: volti spazi e creatività nell'opera di Filippo Bentivegna

2018

In this essay the author investigates the life and the work of F. Bentivegna, a sicilian migrants who had the power to translate the failure of a dream in an artistic expression form, thus becoming one of the exponents of the european Art Brut's artistic movement.

Human capital and life satisfaction among circular migrants: an analysis of extended mobility in Europe

2019

This article extends understandings of circular migration among young migrants (aged 16–35) by focusing on the two key concepts of human capital and life satisfaction. Drawing on a large-scale quan...

The Role of Recent Admixture in Forming the Contemporary West Eurasian Genomic Landscape

2015

Summary Over the past few years, studies of DNA isolated from human fossils and archaeological remains have generated considerable novel insight into the history of our species. Several landmark papers have described the genomes of ancient humans across West Eurasia, demonstrating the presence of large-scale, dynamic population movements over the last 10,000 years, such that ancestry across present-day populations is likely to be a mixture of several ancient groups [1, 2, 3, 4, 5, 6, 7]. While these efforts are bringing the details of West Eurasian prehistory into increasing focus, studies aimed at understanding the processes behind the generation of the current West Eurasian genetic landsc…

Les parcours scolaires des jeunes issus de l'immigration. Quelles aspirations ? Quelles réalités ?

2008

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New horizons for fundamental physics with LISA

2022

K. G. Arun et al.

2016

Abstract. Through measurements of NO2, O3 and NO3 during the PARADE campaign (PArticles and RAdicals, Diel observations of mEchanisms of oxidation) in the German Taunus mountains we derive nighttime steady-state lifetimes (τss) of NO3 and N2O5. During some nights, high NO3 (∼ 200 pptv) and N2O5 (∼ 1 ppbv) mixing ratios were associated with values of τss that exceeded 1 h for NO3 and 3 h for N2O5 near the ground. Such long boundary-layer lifetimes for NO3 and N2O5 are usually only encountered in very clean/unreactive air masses, whereas the PARADE measurement site is impacted by both biogenic emissions from the surrounding forest and anthropogenic emissions from the nearby urbanised/industri…

Diurnal variability, photochemical production and loss processes of hydrogen peroxide in the boundary layer over Europe

2019

Hydrogen peroxide (H2O2) plays a significant role in the oxidizing capacity of the atmosphere. It is an efficient oxidant in the liquid phase and serves as a temporary reservoir for the hydroxyl radical (OH), the most important oxidizing agent in the gas phase. Due to its high solubility, removal of H2O2 due to wet and dry deposition is efficient, being a sink of HOx (OH+HO2) radicals. In the continental boundary layer, the H2O2 budget is controlled by photochemistry, transport and deposition processes. Here we use in situ observations of H2O2 and account for chemical source and removal mechanisms to study the interplay between these processes. The data were obtained during five ground-base…

Airborne observation of mixing across the entrainment zone during PARADE 2011

2016

This study presents the analysis of the structure and air mass characteristics of the lower atmosphere during the field campaign PARADE (PArticles and RAdicals: Diel observations of the impact of urban and biogenic Emissions) on Mount Kleiner Feldberg in southwestern Germany during late summer 2011. We analysed measurements of meteorological variables (temperature, moisture, pressure, wind speed and direction) from radio soundings and of chemical tracers (carbon dioxide, ozone) from aircraft measurements. We focus on the thermodynamic and dynamic properties that control the chemical distribution of atmospheric constituents in the boundary layer. We show that the evolution of tracer profiles…